Quantcast KVCD: 150-Minute SVCD Hq-Resolution on CDR-80 ? - digitalFAQ.com Forums [Archives]
  #1  
09-13-2002, 02:07 PM
obrigado obrigado is offline
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When trying to get further optimization (increase video quality, reduce
filesize) Ive tried to encode the movie in interlaced mode (cause the
TV set displays in interlace mode anyway).

So instead of 25 fps non-interlace (progressive) I selected 50 fps
interlaced. This needs to select MP@HL in MPEG2 mode.

Test encodings of 1min samples issued filesize of about 60% for interlaced
compared to non-interlaced (100%). At 448x448 active SVCD
windowsize (in 480x576) Ive got ~ 5MB/min @ cq 75 in TMPGenc
bringing a total playing time of about 150min at fullSVCD resolution.

The trick is using field based encoding instead of framebased encoding. My S/A player Panasonic RV32 plays this flawlessly (so far).

I still get some block artefacts in scene changes so Ill try further optimizations (field order, etc)

Maybe someone will check this too and let us know the results of
his S/A player (some players are known to run into trouble @ field based
encodings)

Obrigado
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  #2  
09-14-2002, 08:58 AM
cybermage26 cybermage26 is offline
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Is this optimisations for the SKVCD template..?
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  #3  
09-15-2002, 05:47 AM
obrigado obrigado is offline
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-> cybermage26
> Is this optimisations for the SKVCD template..?

well, mhh, yes, no ?

it only applies to SVCD because of MPEG2
(interlacing is not applicable to MPEG1 standard)

but its independent by its natur from KVCD templates.
Anyway
the K-templates are very useful base, so I used the basic KVCD
strategy of long GOPs and size optimizing matrices.

This way goes beyound and might push KVCD further forward.

Ill forward a template soon
so anyone could play along.

Obrigado
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  #4  
09-15-2002, 08:09 AM
cybermage26 cybermage26 is offline
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Cool, I look forward to seeing that template .. as SKVCD is the only template my DVD player plays (apart from MPEG1 templates at 352x240/28.
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  #5  
09-22-2002, 01:08 AM
gopalkk gopalkk is offline
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what happened to this Interlaced SVCD?

KVCDx3 is working very well in almost all APEX DVD players
at 544x480 MPEG-2.

But, my sources are 3hours long and I want to fit them in 2-cds.

Interlacing might help.
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  #6  
10-20-2002, 03:02 PM
gopalkk gopalkk is offline
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where r u man?

when will u release ur template?

TIA
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